The 1954-S Roosevelt Dime with the "No JS" initials is an interesting variety. The missing "JS" initials should be on the obverse of the coin, beneath Roosevelt's bust and to the left of the date. The initials stand for "John Sinicock, the designer of the Roosevelt Dime. The missing "JS" initials are fairly obvious to spot and can easily be noticed without magnification. A neat variety that commands a small premium in most grades.